Warranty is a joke
I've had several pairs of Costas, different styles. They have good optical quality, and some do well at speed without causing your eyes to tear (biking, skiing). That being said, they seem very fragile and prone to breaking. One pair broke when I received the most gentle of hugs. Two other times they broke simply by putting them on. When I contacted Costa for warranty repair, every time they refused to honor their 'lifetime warranty' and charged me to 'warranty' (repair) their product. I am used to and prefer dealing with reputable companies that steadfastly stand behind their goods. I will never buy another Costa product, I'm going back to Ray Ban. Same good optics, real warranty protection!